Title:
DISTRIBUTED POWER SUPPLY AND CONTROL METHOD THEREOF
Document Type and Number:
Japanese Patent JP2022032632
Kind Code:
A
Abstract:
To provide a distributed power supply and a control method thereof capable of shortening the time until re-linking by synchronizing voltage of a local system with voltage of an upper system at an early stage, even when there is an electric generator having no synchronization function in the local system.SOLUTION: In a distributed power supply comprising a power converter connected to a local system linked to an upper system 10 and a control circuit thereof, the control circuit has means for controlling active power which the power converter of a distributed power supply 41 outputs to a local system 20, according to a voltage phase difference and a voltage frequency difference of the upper system 10 and the local system 20 so that a voltage phase and a voltage frequency of the upper system 10 acquired by a phase/frequency measuring part 11 and an upper control part 12 may coincide with a voltage phase and a voltage frequency of the local system 20 acquired by a phase/frequency measuring part 21, respectively.SELECTED DRAWING: Figure 1
Inventors:
UEMURA HIROFUMI
Application Number:
JP2020136607A
Publication Date:
February 25, 2022
Filing Date:
August 13, 2020
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
H02J3/40; H02J3/32; H02J3/38; H02J7/34; H02J15/00; H02M7/48
Attorney, Agent or Firm:
Yuichi Morita